Holder of a ribbon for typewriters or similar machines

Abstract

A holder of a ribbon for typewriters or similar machines in which the ribbon can be transferred from a supply spool to a take-up spool and where the two spools are disposed on a slider. By means of the invention it is intended to manufacture the slider for the two spools in as simple a manner as possible and without further assembly steps. This is made possible when the holder, together with the slider for the ribbon spools, is initially made as a one-piece plastic part. It may also have a pivotable cover so that a cassette is formed after insertion of the spools and closing of the cover. The one-piece construction of the holder with the slider also makes securing for transport unnecessary. When the holder is inserted into a correspondingly designed receptacle, the slider is separated from the holder by breaking off from thin connecting points at so-called predetermined breaking points and it is positioned a little higher than the holder on the respective guide bars of the receptacle. After laterally pivotable side elements of the receptacle have been moved in, the ribbon is in a functionally correct position in the typewriter or the printer. Because of this design of the holder in connection with the receptacle, simple manipulation in the course of the insertion of a new ribbon is achieved.

What is claimed is: 
     
       1. A holder of a ribbon for typewriters or similar machines where the ribbon can be transferred from a supply spool to a take-up spool, comprising: a slider on which both spools are disposed, the holder and the slider being in the form of one-piece plastic part; and   bars connecting the slider and the holder in the form of predetermined breaking points, such that the slider can be broken off the holder when the holder is placed on a receptacle.   
     
     
       2. A holder in accordance with claim 1, wherein the bars are disposed at a V-shaped depression between the holder and the slider. 
     
     
       3. A holder in accordance with claim 1, wherein the slider slidingly rests in its operational position on guide bars of the receptacle such that the slider is positioned a above the base plate of the holder. 
     
     
       4. A holder in accordance with claim 1, wherein the holder is in the form of a ribbon cassette. 
     
     
       5. A holder in accordance with claim 2, wherein the slider slidingly rests in its operational position on guide bars of the receptacle such that the slider is positioned a above the base plate of the holder. 
     
     
       6. The holder housing of claim 1, characterized in that the thin bars (7) are disposed on a V-shaped depression (23, 24) between the holder housing (1) and slider (6). 
     
     
       7. The holder housing of claim 1, characterized in that the slider (6), in its working position, slidably rests on guide bars (18) of the receptacle (14), in such a manner that the slider (6) is located above the holder base (3) of the holder housing (1). 
     
     
       8. The holder housing of claim 1, characterized in that the holder housing (1) is integrally embodied with a hinged lid (2). 
     
     
       9. A holder housing of a ribbon for typewriters or similar machines, wherein the holder housing has at least one flat plate with side walls disposed on it and guides for the ribbon, wherein the ribbon can be wound from a supply spool onto a take-up spool, and wherein both spools are rotatably supported on a slide provided with suitable retaining devices, characterized in that; the holder housing (1) and the slide (6) are embodied as a single plastic part, and   the slider (6) can be broken away from the holder base (3) at bars (7) having predetermined breaking points, when the holder housing (1) is placed upon a receptacle (14) provided with raised guide bars (18, 19) acting upon the slider (6).